Good Idea For Cooling?

[amishrabbi]

http://www.cal-look.com/tech/keepingcool.shtml

came across it while scouting for cooling options

[silas]

did josh ever have over heating problems with that motor? is the set up of the motor different now than when he had it? do you have head temp & oil temp & oil psi gauges?

i'd start driving and enjoying it while monitoring the running temps and the go from there. you can always pop a tennis ball on the decklid latch to prop it open to add some fresh air and see if that makes a difference too.

[amishrabbi]

bottom is propped

no overheating problems persay but he said that at highway speeds if sustained for ~30min he noticed the engine gets hot. rpms are at ~3300 for 80km/h

have oil psi, will be installing other gauges.

im going to do the taller tires to lower the rpm but looking at other stuff just in case. and due to my inexperience i need opinions on stuff

[silas]

bottom is propped

no overheating problems persay but he said that at highway speeds if sustained for ~30min he noticed the engine gets hot. rpms are at ~3300 for 80km/h

have oil psi, will be installing other gauges.

im going to do the taller tires to lower the rpm but looking at other stuff just in case. and due to my inexperience i need opinions on stuff

i hope you mean 3300rpm at 80MPH.

you could always get the alan u deepfry/candy thermometer special for a quick & easy test before you go all out on the gauge....

http://www.airspeedparts.com/community-for...=ST&f=4&t=11311

....or deep sump, remote oil cooler or fan??? there are others with far more experience than i at cooling larger displacement motors, so i'll let them take over.

[amishrabbi]

thought of those options as well, but this one just seemed easiest/cheapest if it works like the guy says it does.

theory seems sound but second opinion is always good.

might have been 80mph...ill find out driving it home today  

[egspot]

thought of those options as well, but this one just seemed easiest/cheapest if it works like the guy says it does.

theory seems sound but second opinion is always good.

might have been 80mph...ill find out driving it home today

I believe he meant 3300 rpms at 80 km/hr.

80 mph will be around 128 kms/hr and If that engine does that at 3300 rpms, I like to see it on the 1/4 mile.

[silas]

thought of those options as well, but this one just seemed easiest/cheapest if it works like the guy says it does.

theory seems sound but second opinion is always good.

might have been 80mph...ill find out driving it home today

I believe he meant 3300 rpms at 80 km/hr.

80 mph will be around 128 kms/hr and If that engine does that at 3300 rpms, I like to see it on the 1/4 mile.

i dont think your idea of seeing this car on the 1/4 mile would be quite as exilerating as you predict. allthough i bet it has the potential to be a 13 second car with a little help.

here's my theory....80kmh = 50mph, so if that is what is happening the rabbi either has really small back wheels, a tranny with super short gears, he's stuck in 3rd gear, or the speedo isnt calibrated properly (also, i'm not sure what size his front tires are as that could mess with his speedo calibration aswell)....and traffic would be blowing by him on the highway. plus the other thread he started looking for bigger tires leads me to believe that he's getting pretty close to maxing it out at these speeds.

an example is that i'm just shifting into 4th gear at 50mph/80kmh with my 1600dp & stock tranny.

[amishrabbi]

well being as the speedo is screwed im not sure exactly what speed i was at but cruising at 3000 rpm traffic was blowing past me.

tranny is stock, back tires are 195/65 i think, or 195/60

ill pick up a cylinder head temp gauge tomorrow so i can monitor the temp better.

a little help=a better driver than me :lol:  

[silas]

well being as the speedo is screwed im not sure exactly what speed i was at but cruising at 3000 rpm traffic was blowing past me.

tranny is stock, back tires are 195/65 i think, or 195/60

ill pick up a cylinder head temp gauge tomorrow so i can monitor the temp better.

a little help=a better driver than me :lol:

why is your speedo screwed? i noticed that it has a custom white face. who made it? is it in kmh or mph and is it calibrated correctly? a good way to find out is to get a friend to pace you on the highway or find one of those speed meter things that the cops put out there that give you a visual digital output of your speed.

front tire size will effect the speedo reading and rear tire size will help/hinder cruising speed/engine rpms (kind of like a 5th gear in your 4 gear box)

so....you're in 4th gear, cruising at 3000rpm on the highway, and traffic is blowing by you? does the engine sound strung out or is there more in it?  

[Chris W]

I agree with Silas, something is not right. My little SP moves with traffic no problem, last year me and Silas drove from Van to Shanes house and had no issue with traffic speed or heat on a hot hot day.

Your tach might be off also.

I belive going to a bigger rear tire make the problem worse? You will lower the RPM, but that will lower fan speed also.

[amishrabbi]

there is tons more in the engine, but josh mentioned it so i didnt want to cruise at 4000 for a half hour on the freeway today.

thinking with the back tires is less rpms = less heat generated.

speedo josh custom made for it, its in kmph; but when its off the needle is at 10 so i know its off at least that much, ill be checking it tomorrow with a buddy on the highway though.

cylinder head temp gauge should help figure out the extent of the problem, or if there is even one but josh mentioned it and he built the car so figured id act on it

what do i want my cylinder head temp to be between? like a high and a low.

[Hansk]

thinking with the back tires is less rpms = less heat generated.

 

Not true , your motor relies on fan speed to cool it(also , cooling system complete and in good shape)  although it could possibly run hotter or cooler at one steady rpm compared to another. That would have more to do with tuning .  

[josh]

wooow where was I when all this action happened? Here's the deal.....

it's got the stock 63 4.37? r&p with a 195/60 tire so yeah it'll spin 3500ish in 90-100kmh traffic.
I never had a problem with it getting hot, I had a berg dipstick in it for a while, never came on.
I just told him if he was going to do a lot of hyway time it may be benificial to try and lower the rpms a bit cause I know in the summer and vancouver driving could strain it a little

did you read that little list I made for you?

I mentioned that a 26mm pump may be good to switch out the overkill 30mm I put in before I knew it wasn't nessisary. when spinning over 3000 the oil pressure is 50-60 psi and if you are holding it there on the hyway chances are the oil is probably lifting the relief and bypassing the stock cooler which if prolonged is gonna lead to it getting hot. But like I said it was never a problem for me cause the extent of my driving was city streets mostly.

 

[josh]

if memory serves me correctly, at those speeds the speedo is off by 15 km while someone clocked me. take the needle off and reposition it if it bugs you.

[amishrabbi]

nah doesnt bug me at all. read the list and ive got most of that stuff planned to do, but i like to look at lots of stuff extra, just my nature.

driving my normal speed on the highway had it at around 4000 rpm.  for now ill go with the taller tires, and watch the temps, if its a problem ill switch the oil pump and then progress from there. i just like to look at things in advance, got a problem with over thinking things.

 

[josh]

best be wearing earplugs at 4000 for any length of time :wacko:  

[egspot]

got a problem with over thinking things.

Don't we all!  

[amishrabbi]

best be wearing earplugs at 4000 for any length of time :wacko:

hahaha, so very very true